Structure-from-Sherds: Incremental 3D Reassembly of Axially Symmetric Pots from Unordered and Mixed Fragment Collections
- Authors
- Hong, Je Hyeong; Yoo, Seong Jong; Zeeshan, Muhammad Arshad; Kim, Young Min; Kim, Jinwook
- Issue Date
- Feb-2022
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Citation
- Proceedings of the IEEE International Conference on Computer Vision, pp.5423 - 5431
- Indexed
- SCOPUS
- Journal Title
- Proceedings of the IEEE International Conference on Computer Vision
- Start Page
- 5423
- End Page
- 5431
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/139469
- DOI
- 10.1109/ICCV48922.2021.00539
- ISSN
- 1550-5499
- Abstract
- Re-assembling multiple pots accurately from numerous 3D scanned fragments remains a challenging task to this date. Previous methods extract all potential matching pairs of pot sherds and considers them simultaneously to search for an optimal global pot configuration. In this work, we empirically show such global approach greatly suffers from false positive matches between sherds inflicted by indistinctive sharp fracture surfaces in pot fragments. To mitigate this problem, we take inspirations from the field of structure-from-motion (SfM), where many pipelines have matured in reconstructing a 3D scene from multiple images. Motivated by the success of the incremental approach in robust SfM, we present an efficient reassembly method for axially symmetric pots based on iterative registration of one sherd at a time. Our method goes beyond replicating incremental SfM and addresses indistinguishable false matches by embracing beam search to explore multitudes of registration possibilities. Additionally, we utilize multiple roots in each step to allow simultaneous reassembly of multiple pots. The proposed approach shows above 80% reassembly accuracy on a dataset of real 80 fragments mixed from 5 pots, pushing the state-of-the-art and paving the way towards the goal of large-scale pot reassembly. Our code and preprocessed data is available at https://github.com/SeongJong-Yoo/structure-from-sherds.
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